Fuzz introspector: fuzz_config
For issues and ideas: https://github.com/ossf/fuzz-introspector/issues

Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked Calltree index Parent function Callsite Largest blocked function
205 66 free_ifaces call site: 00066 cleanup
8 29 yylex call site: 00029 inet_pton
6 58 yylex call site: 00058 cleanup
4 10 yyensure_buffer_stack call site: 00010 yy_fatal_error
4 272 yyparse call site: 00272 yyerror
4 277 yyparse call site: 00277 yylex_destroy
3 4 LLVMFuzzerTestOneInput call site: 00004 yyparse
3 50 yy_get_next_buffer call site: 00050 yy_create_buffer
2 54 yyrestart call site: 00054 yy_fatal_error
2 285 yylex_destroy call site: 00285 yy_delete_buffer
2 289 yylex_destroy call site: 00289 free_ifaces
1 15 yyrealloc call site: 00015 yy_fatal_error

Fuzzer calltree

0 LLVMFuzzerTestOneInput [function] [call site] 00000
1 mkstemp [call site] 00001
1 write [call site] 00002
1 close [call site] 00003
1 readin_config [function] [call site] 00004
2 fopen [call site] 00005
2 yyset_in [function] [call site] 00006
2 yyparse [function] [call site] 00007
3 yylex [function] [call site] 00008
4 yyensure_buffer_stack [function] [call site] 00009
5 yyalloc [function] [call site] 00010
5 yy_fatal_error [function] [call site] 00011
6 fprintf [call site] 00012
6 exit [call site] 00013
5 yyrealloc [function] [call site] 00014
6 realloc [call site] 00015
5 yy_fatal_error [function] [call site] 00016
4 yy_create_buffer [function] [call site] 00017
5 yyalloc [function] [call site] 00018
5 yy_fatal_error [function] [call site] 00019
5 yyalloc [function] [call site] 00020
5 yy_fatal_error [function] [call site] 00021
5 yy_init_buffer [function] [call site] 00022
6 __errno_location [call site] 00023
6 yy_flush_buffer [function] [call site] 00024
7 yy_load_buffer_state [function] [call site] 00025
6 fileno [call site] 00026
6 isatty [call site] 00027
6 __errno_location [call site] 00028
4 yy_load_buffer_state [function] [call site] 00029
4 inet_pton [call site] 00030
4 inet_pton [call site] 00031
4 strtoul [call site] 00032
4 atoi [call site] 00033
4 atof [call site] 00034
4 flog [function] [call site] 00035
4 strncpy [call site] 00036
4 fwrite [call site] 00037
4 yy_get_previous_state [function] [call site] 00038
4 yy_try_NUL_trans [function] [call site] 00039
4 yy_get_next_buffer [function] [call site] 00040
5 yy_fatal_error [function] [call site] 00041
5 yyrealloc [function] [call site] 00042
5 yy_fatal_error [function] [call site] 00043
5 getc [call site] 00044
5 ferror [call site] 00045
5 yy_fatal_error [function] [call site] 00046
5 __errno_location [call site] 00047
5 fread [call site] 00048
5 clearerr [call site] 00049
5 yyrestart [function] [call site] 00050
6 yyensure_buffer_stack [function] [call site] 00051
6 yy_create_buffer [function] [call site] 00052
6 yy_init_buffer [function] [call site] 00053
6 yy_load_buffer_state [function] [call site] 00054
5 yyrealloc [function] [call site] 00055
5 yy_fatal_error [function] [call site] 00056
4 yy_get_previous_state [function] [call site] 00057
4 yy_get_previous_state [function] [call site] 00058
4 yy_fatal_error [function] [call site] 00059
3 dlog [function] [call site] 00060
3 strcmp [call site] 00061
3 flog [function] [call site] 00062
3 cleanup [function] [call site] 00063
4 free_ifaces [function] [call site] 00064
5 dlog [function] [call site] 00065
5 free_iface_list [function] [call site] 00066
6 dlog [function] [call site] 00067
3 __errno_location [call site] 00068
3 strerror [call site] 00069
3 flog [function] [call site] 00070
3 cleanup [function] [call site] 00071
3 iface_init_defaults [function] [call site] 00072
3 strlcpy [call site] 00073
3 strlen [call site] 00074
3 flog [function] [call site] 00075
3 flog [function] [call site] 00076
3 cleanup [function] [call site] 00077
3 strndup [call site] 00078
3 __errno_location [call site] 00079
3 strerror [call site] 00080
3 flog [function] [call site] 00081
3 cleanup [function] [call site] 00082
3 calloc [call site] 00083
3 __errno_location [call site] 00084
3 strerror [call site] 00085
3 flog [function] [call site] 00086
3 cleanup [function] [call site] 00087
3 calloc [call site] 00088
3 __errno_location [call site] 00089
3 strerror [call site] 00090
3 flog [function] [call site] 00091
3 cleanup [function] [call site] 00092
3 calloc [call site] 00093
3 __errno_location [call site] 00094
3 strerror [call site] 00095
3 flog [function] [call site] 00096
3 cleanup [function] [call site] 00097
3 calloc [call site] 00098
3 __errno_location [call site] 00099
3 strerror [call site] 00100
3 flog [function] [call site] 00101
3 cleanup [function] [call site] 00102
3 calloc [call site] 00103
3 __errno_location [call site] 00104
3 strerror [call site] 00105
3 flog [function] [call site] 00106
3 cleanup [function] [call site] 00107
3 calloc [call site] 00108
3 __errno_location [call site] 00109
3 strerror [call site] 00110
3 flog [function] [call site] 00111
3 cleanup [function] [call site] 00112
3 flog [function] [call site] 00113
3 cleanup [function] [call site] 00114
3 memcmp [call site] 00115
3 flog [function] [call site] 00116
3 cleanup [function] [call site] 00117
3 __errno_location [call site] 00118
3 strerror [call site] 00119
3 flog [function] [call site] 00120
3 cleanup [function] [call site] 00121
3 nat64prefix_init_defaults [function] [call site] 00122
3 flog [function] [call site] 00123
3 cleanup [function] [call site] 00124
3 flog [function] [call site] 00125
3 cleanup [function] [call site] 00126
3 flog [function] [call site] 00127
3 cleanup [function] [call site] 00128
3 calloc [call site] 00129
3 __errno_location [call site] 00130
3 strerror [call site] 00131
3 flog [function] [call site] 00132
3 cleanup [function] [call site] 00133
3 calloc [call site] 00134
3 __errno_location [call site] 00135
3 strerror [call site] 00136
3 flog [function] [call site] 00137
3 cleanup [function] [call site] 00138
3 flog [function] [call site] 00139
3 cleanup [function] [call site] 00140
3 flog [function] [call site] 00141
3 cleanup [function] [call site] 00142
3 __errno_location [call site] 00143
3 strerror [call site] 00144
3 flog [function] [call site] 00145
3 cleanup [function] [call site] 00146
3 prefix_init_defaults [function] [call site] 00147
3 flog [function] [call site] 00148
3 cleanup [function] [call site] 00149
3 dlog [function] [call site] 00150
3 strlcpy [call site] 00151
3 dlog [function] [call site] 00152
3 strlcpy [call site] 00153
3 __errno_location [call site] 00154
3 strerror [call site] 00155
3 flog [function] [call site] 00156
3 cleanup [function] [call site] 00157
3 route_init_defaults [function] [call site] 00158
3 flog [function] [call site] 00159
3 cleanup [function] [call site] 00160
3 __errno_location [call site] 00161
3 strerror [call site] 00162
3 flog [function] [call site] 00163
3 cleanup [function] [call site] 00164
3 rdnss_init_defaults [function] [call site] 00165
3 flog [function] [call site] 00166
3 cleanup [function] [call site] 00167
3 realloc [call site] 00168
3 __errno_location [call site] 00169
3 strerror [call site] 00170
3 flog [function] [call site] 00171
3 cleanup [function] [call site] 00172
3 flog [function] [call site] 00173
3 cleanup [function] [call site] 00174
3 flog [function] [call site] 00175
3 flog [function] [call site] 00176
3 flog [function] [call site] 00177
3 cleanup [function] [call site] 00178
3 __errno_location [call site] 00179
3 strerror [call site] 00180
3 flog [function] [call site] 00181
3 cleanup [function] [call site] 00182
3 dnssl_init_defaults [function] [call site] 00183
3 realloc [call site] 00184
3 __errno_location [call site] 00185
3 strerror [call site] 00186
3 flog [function] [call site] 00187
3 cleanup [function] [call site] 00188
3 strdup [call site] 00189
3 flog [function] [call site] 00190
3 cleanup [function] [call site] 00191
3 flog [function] [call site] 00192
3 cleanup [function] [call site] 00193
3 strlen [call site] 00194
3 __errno_location [call site] 00195
3 strerror [call site] 00196
3 flog [function] [call site] 00197
3 cleanup [function] [call site] 00198
3 dnr_init_defaults [function] [call site] 00199
3 flog [function] [call site] 00200
3 cleanup [function] [call site] 00201
3 flog [function] [call site] 00202
3 cleanup [function] [call site] 00203
3 flog [function] [call site] 00204
3 cleanup [function] [call site] 00205
3 flog [function] [call site] 00206
3 cleanup [function] [call site] 00207
3 flog [function] [call site] 00208
3 cleanup [function] [call site] 00209
3 strndup [call site] 00210
3 __errno_location [call site] 00211
3 strerror [call site] 00212
3 flog [function] [call site] 00213
3 cleanup [function] [call site] 00214
3 flog [function] [call site] 00215
3 cleanup [function] [call site] 00216
3 flog [function] [call site] 00217
3 cleanup [function] [call site] 00218
3 realloc [call site] 00219
3 __errno_location [call site] 00220
3 strerror [call site] 00221
3 flog [function] [call site] 00222
3 cleanup [function] [call site] 00223
3 htonl [call site] 00224
3 flog [function] [call site] 00225
3 flog [function] [call site] 00226
3 cleanup [function] [call site] 00227
3 strlen [call site] 00228
3 flog [function] [call site] 00229
3 flog [function] [call site] 00230
3 cleanup [function] [call site] 00231
3 flog [function] [call site] 00232
3 cleanup [function] [call site] 00233
3 flog [function] [call site] 00234
3 cleanup [function] [call site] 00235
3 flog [function] [call site] 00236
3 cleanup [function] [call site] 00237
3 flog [function] [call site] 00238
3 cleanup [function] [call site] 00239
3 flog [function] [call site] 00240
3 cleanup [function] [call site] 00241
3 strndup [call site] 00242
3 __errno_location [call site] 00243
3 strerror [call site] 00244
3 flog [function] [call site] 00245
3 cleanup [function] [call site] 00246
3 strlen [call site] 00247
3 flog [function] [call site] 00248
3 flog [function] [call site] 00249
3 cleanup [function] [call site] 00250
3 strstr [call site] 00251
3 flog [function] [call site] 00252
3 flog [function] [call site] 00253
3 strndup [call site] 00254
3 __errno_location [call site] 00255
3 strerror [call site] 00256
3 flog [function] [call site] 00257
3 cleanup [function] [call site] 00258
3 __errno_location [call site] 00259
3 strerror [call site] 00260
3 flog [function] [call site] 00261
3 cleanup [function] [call site] 00262
3 __errno_location [call site] 00263
3 strerror [call site] 00264
3 flog [function] [call site] 00265
3 cleanup [function] [call site] 00266
3 flog [function] [call site] 00267
3 __errno_location [call site] 00268
3 strerror [call site] 00269
3 flog [function] [call site] 00270
3 cleanup [function] [call site] 00271
3 yyerror [function] [call site] 00272
4 fprintf [call site] 00273
3 yydestruct [function] [call site] 00274
3 yydestruct [function] [call site] 00275
3 yyerror [function] [call site] 00276
3 yydestruct [function] [call site] 00277
3 yydestruct [function] [call site] 00278
2 free_ifaces [function] [call site] 00279
2 dlog [function] [call site] 00280
2 yylex_destroy [function] [call site] 00281
3 yy_delete_buffer [function] [call site] 00282
4 yyfree [function] [call site] 00283
4 yyfree [function] [call site] 00284
3 yypop_buffer_state [function] [call site] 00285
4 yy_delete_buffer [function] [call site] 00286
4 yy_load_buffer_state [function] [call site] 00287
3 yyfree [function] [call site] 00288
3 yy_init_globals [function] [call site] 00289
2 fclose [call site] 00290
1 free_ifaces [function] [call site] 00291
1 unlink [call site] 00292